n.原肠胚

原形：gastrula复数：gastrulas

The gastrula stage marks a critical point in the early embryonic development of many organisms, including vertebrates.
这个阶段对许多生物（包括脊椎动物）的早期胚胎发育至关重要。
During gastrulation, the blastomeres differentiate into three primary germ layers: ectoderm, mesoderm, and endoderm.
在原肠胚阶段，卵裂球分化为三个主要的原始胚层：外胚层、中胚层和内胚层。
The formation of the gastrula is facilitated by the action of various signaling molecules called morphogens.
胚胎形成原肠胚时，由多种形态发生素等信号分子起着关键作用。
In vertebrates, the gastrula gives rise to the neural tube, which later develops into the brain and spinal cord.
在脊椎动物中，原肠胚会产生神经管，它最终会发育成大脑和脊髓。
Gastrulation is an essential process in the development of invertebrates such as insects and worms, too.
对于昆虫和蠕虫等无脊椎动物，原肠胚阶段同样不可或缺。
The gastrula stage is characterized by the movement of cells from the outermost layer to the inner layers, forming the body plan.
原肠胚阶段的特征是细胞从最外层向内移动，形成身体的基本结构。
Scientists study gastrulation to understand how early organisms generate the diversity of body structures we see today.
科学家研究原肠胚以了解早期生物如何产生我们今天所见的各种身体结构多样性。
Errors during gastrulation can lead to developmental disorders, such as neural tube defects in humans.
原肠胚发育异常可能导致人类出现如神经管缺陷等发育障碍。
Comparative embryology examines the similarities and differences in gastrulation processes across different species.
比较胚胎学关注不同物种中原肠胚发育过程的异同。
Researchers use advanced imaging techniques to observe gastrulation in real-time, providing insights into the complex mechanisms at play.
研究人员利用高分辨率成像技术实时观察原肠胚发育，揭示其背后的复杂机制。